//
//  NetWorkTools.m
//  手写单例
//
//  Created by co on 16/3/13.
//  Copyright © 2016年 王南侠. All rights reserved.
//

#import "NetWorkTools.h"

@implementation NetWorkTools

+(instancetype)sharedTools {
    
    static id instance;

    static dispatch_once_t oneToken;
    dispatch_once(&oneToken,^{
        instance = [[self alloc]init];
        
    });
    return instance;
}

@end
